JPH0715679U - Automatic ball removing and lifting device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lifting device which has a simple structure, can be freely rotated by remote control under any usage environment, and can automatically remove a ball. [Structure] A rotation drive device 3 is vertically installed at the center of the top, and an air compressor 4, a battery 5 for supplying power to the rotation drive device 3 and the air compressor 4, a control device for receiving a wireless control signal and performing the power supply control. Lifting frame 2 storing 6 respectively, and said rotation drive device 3
, A suspension ring 7 connected to the upper end of the lifting frame 2, a suspension line 8 vertically oscillating at both ends of the lifting frame 2, and a sling hook pivotally supported at the lower end of each of the suspension lines 8. 9 and
It is attached and fixed to the hanging rope 8 and the lower end is the sling hook 9
Connected to the back of the air compressor 4
And a ball removing device for removing the ball of the wire rope w by rotating the sling hook 9 or the kicking bar 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lifting device having a compact structure, which is rotatable and is capable of automatically removing balls.

[0002]

[Prior art]

 As shown in Fig. 4, a long object to be lifted a such as a steel pipe transported by a truck is temporarily placed in a predetermined place, and then loaded again into a transportation device such as a truck or a ship and shipped. There are many things. In such a case, the temporary storage place is often outdoors, and the land traveling crane b is generally used for lifting and lowering the object to be lifted a.

By the way, in order to lift the object a to be lifted by the above-mentioned land-based traveling crane b, the lifting hook c of the land-based traveling crane b is engaged and the object-to-be-lifted a is hung below the lifting hook c. The heavy equipment d is used. The lifting device d includes a lifting frame f having a hook or a wire e that engages with the lifting hook c at the center of the top, and a suspension frame vertically oscillated at both ends of the lifting frame f. The wire rope w is wound around the object to be lifted a at the lower end of the hanging rope g, and then the land traveling crane b is operated to lift and lower the rope.

Now, in order to perform slinging using the above-mentioned conventional lifting device d, it is necessary for an operator to engage the wire rope w with the hanging rope g, and to control the direction of the object to be lifted a. In order to do so, the worker rotates the lifting device d while pushing the object to be lifted a. In addition, in order to remove the ball that separates the wire rope w from the suspension line g after it has been piled up on a predetermined part, it is necessary for the worker to climb onto the piled up load a and perform the ball removal work. is there. Such a series of work is performed in a dangerous environment where the foothold is not high and the physical and mental burden on the worker is extremely large. In addition, the work efficiency was extremely low because it relies entirely on the human resources of the workers.

[0005]

[Problems to be solved by the device]

 The present invention is intended to improve the lifting device d used in the above-mentioned environment, and has a simple structure and can be freely rotated by remote control under any usage environment. The present invention also provides the lifting device capable of automatically removing balls.

[0006]

[Means for Solving the Problems]

 A lifting device based on the present invention, which was devised to solve the above-mentioned problems, has a rotary drive device vertically installed at the center of the top, an air compressor, a battery for supplying power to the rotary drive device and the air compressor, and a wireless control. A lifting frame that stores a control device that receives a signal and controls the power supply, a suspension ring that is connected to an upper end of the rotation drive device, and a swing frame vertically hangs at both ends of the lifting frame. A sling line, a sling hook rotatably supported at the lower ends of the sling lines, and a fixed attachment to the sling line. The lower end is connected to the back of the sling hook and compressed air from the air compressor is connected. It is characterized in that it is composed of a supply pipe connected in series and a ball removing device for removing the ball of the wire rope by rotating the ball hook.

Further, the ball removing device is lifted and lowered by the lifting cylinder connected to the compressed air supply pipe supplied from the air compressor and the link mechanism fixed to the lower end of the suspension line. Another feature is that it is composed of a kick bar that is driven in conjunction with the operation.

[0008]

[Action]

 The hoisting device of the present invention can be freely rotated by wireless remote control from the ground or the cab of a crane, for example. Therefore, it becomes possible to control the direction of the object to be lifted arbitrarily and accurately. It is also possible to automatically remove the wire rope by transporting the wire rope to a predetermined part and then remotely driving the ball removing device attached to the lower end of the hanging rope.

[0009]

【Example】

 A specific configuration of the present invention will be described in more detail with reference to the drawings showing an embodiment. FIG. 1 is a structural diagram showing an embodiment of a lifting device according to the present invention. In the figure, 1 is a lifting device and 2 is a lifting frame. The lifting frame 2 has a rotary drive device 3 vertically installed at the center of the top thereof, and further houses an air compressor 4, a battery 5, and a control device 6. The battery 5 is for supplying power to the rotary drive unit 3 and the air compressor 4, and the control unit 6 receives a wireless control signal from the cab of a lifting machine such as a ground crane or a land-based traveling crane. The power supply from 5 to the rotary drive device 3 and the air compressor 4 is controlled. The air compressor 4, the battery 5, and the control device 6 are arranged at appropriate portions of the lifting frame 2 so that the rotation drive device 3 can be balanced.

Reference numeral 7 is a suspension ring connected to the upper end of the rotary drive device 3, and the lifting device 1 is attached to the lifting machine by engaging with a lifting hook c of the lifting machine. Reference numeral 8 is a suspension line vertically oscillatingly provided at both ends of the lifting frame 2, and sling hooks 9 are pivotally supported at the lower ends thereof, respectively. Reference numeral 10 is a ball removing device. This bead removing device 10 is, for example, as shown in the partially enlarged view of FIG. 2, an air cylinder 12 having an upper end fixed to a bracket 11 fixed to a hanging rope 8 and a lower end connected to the back of the sling hook 9. And a compressed air supply pipe 13 for supplying compressed air from the air compressor 4 to the air cylinder 12.

The operation of the sling hook turning device 10 is carried out from the compressed air supply pipe 13 to the air cylinder via the electromagnetic valve 14 which operates the compressed air generated by the air compressor 4 by the control signal of the control device 6. Supply to 12. The piston rod 12a of the air cylinder 12 is pulled up by the supply of compressed air, and the sling hook 9 rotates about the supporting shaft 9a as a fulcrum as shown by a chain double-dashed line. This rotation causes the opening 9b of the sling hook 9 to face downward, and the wire rope w engaged with the sling hook 9 is automatically detached by its own weight. In other words, it is possible to automatically remove the ball. When the supply of compressed air is stopped, the lifting force of the air cylinder 12 disappears, and the sling hook 9 returns to its steady state by its own weight as shown by the solid line in FIG. The lifting device 1 mounted on the lifting machine can also be freely rotated in any direction by rotationally driving the rotary drive device 3 via the control device 6.

FIG. 3 is a partially enlarged view showing another embodiment of the sling hook rotating device 10a according to the present invention. In the present embodiment, a bracket 11 fixed to the suspension line 8, an elevating cylinder 120 having an upper end fixed thereto, and a link mechanism 14 fixed to a lower end portion of the suspension line 8 further below the bracket 11. It is composed of a kick bar 15 connected to the link mechanism 14, and a compressed air supply pipe 13 is connected to the lifting cylinder 120. Thus, in this embodiment, by supplying compressed air to the lifting cylinder 120, the piston rod 120a extends and the kick bar 15 rotates via the link mechanism 14 as shown by the chain double-dashed line in FIG. . By this rotation, the wire rope w engaged with the sling hook 9 can be detached from the sling hook 9 so as to be scraped out.

[0013]

[Effect of device]

 The hoisting device of the present invention has a feature that it can store its own battery for power supply and can be fully used even in an outdoor use where the power supply device cannot be easily installed, such as a land-based crane. . Also, when slinging the object to be lifted, it is possible for the operator to easily engage the wire rope with the sling hook because the hook position can be adjusted to the wire sling part by rotation control during sling during lifting. Can be done. Furthermore, the ball removal operation when loading can be done automatically by remote control. As a result, work safety has improved dramatically and workability has also improved significantly.

[Brief description of drawings]

FIG. 1 is a structural diagram showing an embodiment of a lifting device according to the present invention.

FIG. 2 is a partially enlarged view showing an embodiment of a ball removing device according to the present invention.

FIG. 3 is a partially enlarged view showing another embodiment of the ball removing device according to the present invention.

FIG. 4 is a schematic view showing an example of the loading situation of the object to be lifted by the conventional means.

[Explanation of symbols]

 1 Lifting device 2 Lifting frame 3 Rotation drive device 4 Air compressor 5 Battery 6 Control device 7 Hook 8 Suspension rope 9 Sliding hook 10 Sliding hook rotating device 11 Bracket 12 Air cylinder 13 Compressed air supply pipe 15 Kicking bar 120 Lifting cylinder

Claims (2)

[Scope of utility model registration request] 1. A rotation driving device is vertically installed at a central portion of the top, and an air compressor, a battery for supplying power to the rotation driving device and the air compressor, and a control device for receiving the wireless control signal and controlling the power supply are housed respectively. Lifting frame, a suspension ring connected to the upper end of the rotation drive device, a suspension line vertically oscillating at both ends of the lifting frame, and a swinging loop at each lower end of the suspension line. A sling hook that is pivotally supported and fixed to the sling line, the lower end is connected to the back of the sling hook, and a compressed air supply pipe from the air compressor is connected in series, and the wire rope is rotated by the sling hook. Automatic ball removing / lifting device composed of a ball removing device for removing the balls. 2. A rotation drive device is vertically installed at a central portion of the top, and an air compressor, a battery for supplying power to the rotation drive device and the air compressor, and a control device for receiving the wireless control signal and performing the power supply control are housed respectively. Lifting frame, a suspension ring connected to the upper end of the rotation drive device, a suspension line vertically oscillating at both ends of the lifting frame, and a swinging loop at each lower end of the suspension line. Through a sling hook that is axially supported and fixed to the hanging rope, an elevating cylinder connected to a compressed air supply pipe supplied from the air compressor, and a link mechanism fixed to the lower end of the hanging rope, A rotatable automatic ball removing / lifting device comprising a ball removing device composed of a kicking rod driven in association with the lifting operation of the lifting cylinder.